code: def default_tracker(domain: Domain) -> DialogueStateTracker:
      return DialogueStateTracker("my-sender", domain.slots)
  
file_path: rasa/tests/integration_tests/core/actions/conftest.py
imports: from typing import Text
  import copy
  import pytest
  from rasa.shared.core.domain import Domain
  from rasa.shared.core.trackers import DialogueStateTracker
label_desc: Use image node_id 4 for calling a global function with example usage: default_tracker(domain) and returns: DialogueStateTracker